UCC3895EVM-001

UCC3895 Evaluation Module

UCC3895EVM-001

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Overview

The UCC3895EVM-001 is an isolated 48V input phase shifted full bridge converter providing an output of 3.3V at 15A. Using the AB outputs of the UCC3895, a novel technique for direct control driven synchronous rectification is demonstrated.

Features

Uses the A and B outputs of the UCC3895 along with a UCC37324 dual 4A MOSFET driver to implement direct control of a synchronous rectifier current doubler in a phase shifted full bridge topology. This technique provides the proper gating and timing signals necessary to accurately synchronize output switching to primary side bridge switching.

Features zero voltage switching (ZVS) over an extended load range by use of synchronous rectification.

The EVM is current limited at approximately 16A, as well as output short circuit protected.

AC/DC & DC/DC controllers (external FET)
UC2875 Bipolar phase shifted full bridge controller with 10.75V/9.25V UVLO, -25°C to 85°C UC2879 Enhanced bipolar phase shifted full bridge controller with selectable UVLO, -40°C to 85°C UC3875 Bipolar phase shifted full bridge controller with 10.75V/9.25V UVLO, 0°C to 70°C UC3879 Enhanced bipolar phase shifted full bridge controller with selectable UVLO, 0°C to 70°C UCC1895 BiCMOS Advanced Phase Shift Resonant Controller UCC2895 Phase-shifted full-bridge controller with enhanced control logic,, -40°C to 85°C UCC3895 Phase-shifted full-bridge controller with enhanced control logic, 0°C to 70°C

 

Low-side drivers
UCC27323 Inverting 4-A/4-A dual-channel low side gate driver UCC27324 Non-inverting 4-A/4-A dual-channel low side gate driver UCC27325 4-A/4-A dual-channel gate driver with one inverting, one non-inverting input and hystertic logic UCC37323 4-A/4-A dual-channel gate driver with inverting inputs UCC37324 4-A/4-A dual-channel gate driver with non-inverting inputs UCC37325 4-A/4-A dual-channel gate driver with one inverting, one non-inverting input
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Evaluation board

UCC3895EVM-001 — UCC3895 Evaluation Module

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Technical documentation

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Type Title Date
* EVM User's guide UCC3895EVM-001 Configuring The UCC3895 For Direct Control Driven Synchronous Re (Rev. B) 02 Dec 2008
Data sheet UCC27324-Q1 Dual 4-A Peak High-Speed Low-Side Power MOSFET Driver datasheet (Rev. D) PDF | HTML 28 Nov 2023
Data sheet UCCx895 BiCMOS Advanced Phase-Shift PWM Controller datasheet (Rev. Q) PDF | HTML 09 Oct 2019
Certificate UCC3895EVM-001 EU Declaration of Conformity (DoC) 02 Jan 2019
Application note Phase Shifted Full Bridge, Zero Voltage Transition Design Considerations (Rev. A) 22 Jan 2011

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